ruff.com.br Listed by devman Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

Ransomware groups continue to target organisations of every size by stealing data, encrypting systems and posting victims on leak sites to apply pressure. Listings of this kind have become a routine feature of the current threat landscape, often appearing before full details are independently verified.

On 4 August 2025 the Brazilian domain ruff.com.br was listed by the ransomware group known as devman. Public reporting indicates that internal files were exfiltrated in a ransomware attack and that a figure of 1 000 000 USD was associated with the incident. The number of people affected remains unknown, and independent confirmation of the full scope is still limited.

Inside the incident

According to available records, ruff.com.br appeared on a leak site operated by the group calling itself devman. The listing is dated 4 August 2025. The only data category publicly named is “internal files” said to have been taken during a ransomware attack. A reported summary figure of 1 000 000 USD is attached to the entry; whether this represents a ransom demand, an estimated value or another claim has not been clarified in open sources. No technical details of the intrusion method, the precise date of compromise, or the volume of data removed have been disclosed. The number of individuals whose information may be involved is listed as unknown. All of these particulars rest on the group’s own claim and have not been independently verified in the material available.

The group behind it: devman

Devman is a ransomware operation that follows the now-common double-extortion model: data is stolen before systems are encrypted, and the threat of public release is used to compel payment. Like other groups of this type, it maintains a leak site on which it posts victim names, sample files and ransom-related claims. Public reporting on prior campaigns shows that devman typically advertises stolen data packages and sets deadlines for payment, after which it threatens to publish or auction the material. The group’s listing of ruff.com.br should be treated as an unverified claim; no independent confirmation that the organisation was successfully compromised or that the stated files were taken has been provided in the facts at hand.

ruff.com.br and its sector

ruff.com.br is a Brazilian organisation operating under a commercial .com.br domain. Public background on the precise nature of its business is limited in the breach record, yet organisations of this kind commonly maintain internal administrative files, employee records, customer or supplier databases, financial documents and operational correspondence. A breach that reaches such material can affect both the organisation’s day-to-day functioning and the privacy of anyone whose personal or commercial information is stored inside those systems. Because the entity is based in Brazil, any exposure also raises questions under local data-protection rules that govern the handling of personal information.

What was likely exposed

The only data type explicitly named in connection with the incident is “internal files” said to have been exfiltrated. No further breakdown—such as whether those files contained personal identifiers, financial records, contracts or technical documentation—has been released. Organisations similar to ruff.com.br typically hold employee contact details, payroll information, client lists, invoices and internal communications. It is therefore possible that some combination of these categories was among the material taken, yet the exact contents remain unconfirmed. Readers should treat any specific claim about what was stolen as provisional until more detailed evidence appears.

Why it matters

When internal files leave an organisation’s control, the people named in them face concrete risks: phishing that uses accurate personal details, identity fraud, or unsolicited contact that appears legitimate because it draws on real data. For the organisation itself, the consequences can include operational disruption, regulatory scrutiny, loss of trust among customers and partners, and the cost of investigation and recovery. Even when the number of affected individuals is unknown, the mere fact that a ransomware group has claimed possession of internal material creates lasting uncertainty. That uncertainty is the practical harm of such listings.

What to do if you're exposed

If you have any past or present relationship with ruff.com.br—as an employee, customer, supplier or partner—treat the possibility of exposure seriously. Monitor bank and credit-card statements for unfamiliar activity, enable multi-factor authentication on important accounts, and be wary of unexpected emails or messages that reference the organisation. Change passwords that may have been reused across services. You can also run a free exposure scan of your email address to check whether it has already appeared in known breach data sets; doing so gives an early indication of whether your information is circulating and helps you prioritise further protective steps.

AICompiled with AI assistance from public sources and published under our editorial standards.